Improvement in feed-rollers forcarding-machlnes



H. G. ELLSWORTH. FEED ROLLER FOR GARDING MACHINES.

No. 5,272. Patented Aug. 4, 1847.

.UNITED STATES PATENT OFFICE-- H. G. ELLSWORTH, OF ENFIELD, CONNECTICUT.

IMPROVEMENT IN FEED-ROLLERS FORCARDING-MACHINES,.&.O.

Specification formingpart of Letters Patent No. 5,272, dated September 4, 1847.

.To all whom it may concern:

Be it known that I, H. G. ELLSWORTH, of Enfield, county of Hartford, and State of Connecticut, have invented a new and Improved Feed-Roller for Cards and other Machinery, which improvement consists in first cutting a screw-thread around the roller and then fiuting it, and thereby forming teeth, which do-not come in direct rows, one exactly'after the other, but may .be said tobreak joints.

The following is the exact description thereof.

To enable others skilled in the art to make and use my invention,lproceed to describe it with reference to the drawings annexed, in which v Figure l is a perspective View of top and bottom rollers, F being a frame, at d iron studs forming bearings for the necks of the rollers, T top roller, made Ot'Wrought-irOn or steel, and A B the bottom roller, made also of iron or steel.

Fig. 2 is a plan view of the bottom roller.

Corresponding letters refer to corresponding parts.

A B, Figs. 1 and 2, are the toothed rollers. I make said roller by first cutting a screwthread around it more or less fine, orby turn ing grooves in and around it. It is then fluted in the ordinary way from one collar to the other, thereby forming teeth.

a a are collars on and near the ends of the rollers. Said collars are just the height of the tops of the teeth and are for-the purpose of keepi points.

There is a gear-wheel on the end B for the purpose of producing uniformity of motion between the top' and bottom rollers.

I am aware that there have'been various devices used for preventing feed-rollers from lapping and for more effectually straightening the stock before it leaves---them;-henee g the top roller fromtouching said they have been covered. with eard-teeth,witlf leather, and have been fluted; but all has been to little or no purpose, and cards using either cotton or wool aresubject to mtich and serious injury'a difficulty which my roller prevents. I shall therefore disclaim the fluting of the roller; but

What I do claim as my invention, andvdesire to secure by Letters Patent, is

The combination of the fluting with w the screw-thread or grooves on the surfaces-of feed-rollers, thereby forming teeth which straighten the fibers and more eifectually prevent lapping.

In testimony whereof I, the said H. G. ELLS- WORTH, hereto subscribe my name in pres ence of the witnesses Whose names are hereto subscribed.

Dated at Hartford on this 15th day of March. A. D. 1847.

H. G. ELLSWORTH. Witnesses:

S. SMITH,

I. B. STARR. 

